Innocence vs Corruption

I've been thinking a lot about the differences between the corrupt and the innocent in the novel, and what defines them. To me, Velutha is innocent. Sure, he is part of the march, but it is hard to see a man fighting for his freedom as corrupt. The breaking of the love laws does not destroy his innocence either because it is an act of love. He loves Ammu and her children as if they were family and refuses to accept society's fake laws as truth. Likewise, the children love him more than they love most of the people in their immediate family. The innocence of children often keeps prejudices at bay. They do not see lines of race and caste like the adults do in the novel as well as in society. Velutha treats them with love and affection, and that is all that matters to them. Velutha's death and Baby Kochamma's corruption of Estha and Rahel only furthers Velutha's and the children's innocence. They are abused by the system of corruption in a way that makes me think about society's corruption and the differences between accepting the corruption or claiming innocence.